EP0724793B1 - Professionelle bidirektionale schalt- und übertragungsvorrichtung unter verwendung von zeitmultiplex von analogen bzw. digitalen hifi audiosignalen und steuer- und kontrollsignalen - Google Patents

Professionelle bidirektionale schalt- und übertragungsvorrichtung unter verwendung von zeitmultiplex von analogen bzw. digitalen hifi audiosignalen und steuer- und kontrollsignalen Download PDF

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Publication number
EP0724793B1
EP0724793B1 EP94931072A EP94931072A EP0724793B1 EP 0724793 B1 EP0724793 B1 EP 0724793B1 EP 94931072 A EP94931072 A EP 94931072A EP 94931072 A EP94931072 A EP 94931072A EP 0724793 B1 EP0724793 B1 EP 0724793B1
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Prior art keywords
signals
transmission
command
fidelity
equipment
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Expired - Lifetime
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EP94931072A
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English (en)
French (fr)
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EP0724793A1 (de
Inventor
Christian Royer
Philippe Royer
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Innova Son SARL
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Innova Son SARL
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/04—Studio equipment; Interconnection of studios

Definitions

  • the present invention relates to a professional system for bidirectional multiplex switching and transmission time for high-fidelity audio-analog signals and digital audio and command and control signals.
  • Digital signal transmission devices in particular particular of digital audio signals such as those produced and treated in recording studios, stages and radio, television or concert hall control rooms present, in the case of certain applications, another number of problems.
  • a second group of transmission systems is made up by digital transmission systems.
  • Such an example of system is for example described in patent US-A-5,060,273.
  • This system is based on the principle of signal multiplexing digitized. Sources are generally connected individually on one or more concentration boxes which bring them together in a multipair. This one is connected in a transmitter box which converts each signal by the through pre-amplification circuits. These circuits are remotely controlled from a master receiver by a link specific. Digital signals multiplexed in series are transmitted in light form, in one or more fibers optics, and thus feed several control rooms simultaneously. The digital nature of the signal allows it to be routed by electronic control and memorize different configurations. The transmitter remote control and the signals in the other direction is through a second link in optical fiber.
  • Such a transmission device although solving previous device problems analog, i.e. less bulk and less weight, has other disadvantages, however, such as particular, the cost, the fragility of the transmission linked to the fragility of optical fibers and the impossibility of reconfiguring at leisure the configurations chosen so that the number of sources can be varied and the number of broadcast channels.
  • the aim of the present invention is therefore to propose a professional switching and transmission system bidirectional with time multiplexing for signals high fidelity and command and control signals between a transmitter and receiver, simple to implement and little costly regardless of transmitter and receiver.
  • Another object of the invention is to propose such a device extremely flexible, the transition from a configuration to a other being capable of being carried out in real time without intervention of a team of workers.
  • the invention relates to a professional system for bidirectional switching and transmission with multiplexing at less time for high-fidelity audio-analog signals and digital audio and control signals and controls, such as those produced and processed in studios recording, scenes and control rooms for radio, television or sound systems, or concert halls, including a first two-way transmission support for conveying first frames produced by multiplexing said high fidelity signals and command and control signals between a first switching end device time and signal transmission, said transmitter, and a second time switching end equipment and signal transmission, called master receiver, characterized in what it also includes interface control means human-machine receiving the high-fidelity signals transmitted by input circuits included in the first end equipment and said command and control signals to monitor in real time evolution of different relative parameters to said signals and to control in real time configuration changes and adaptations in said first end equipment by means of said signals command and control.
  • said man-machine interface control means include means for calculating memorized parameters dynamic to calculate high-fidelity signals for each first respective absolute values, means for memorize said absolute values, means for comparing respectively said first absolute values at second absolute values previously stored, and means for detecting and storing further absolute values large magnitudes among the absolute values compared.
  • said man-machine interface control means include related computer processing means to said dynamic storage parameter calculation means and to addressing control means included in said second equipment to process and view in real time different information, control and routing blocks, corresponding respectively to transmission channels allocated in the system respectively to said signals high fidelity and to order in real time configuration changes and adaptations in said first end equipment by means of said signals command and control and this according to orders given by an operator, in particular by means of a pointing device such as mouse.
  • the switching and bi-directional transmission system time multiplexing for audio signals and command and control, object of the invention comprises at minus two units, one called transmitter (E), the other called master receiver (RM), linked together by a bidirectional transmission such as cable.
  • the transmitter (E), which constitutes the first end equipment of time transmission and signal transmission occurs generally, as shown in Figure 1, as a box comprising an electronic bus which can receive n modules.
  • the n modules consist of a module responsible for the power supply of the box, of a control module of the transmission and n-2 modules which control either in input, either output each x analog signals or digital.
  • the receiver (RM) has a configuration similar.
  • the transmitter (E) and the receiver (RM) may have a similar shape to that shown in Figure 1.
  • the input and output, as shown in Figure 2 are made up each of eight lanes, with witnesses for each lane light for clipping signal presence and presence of phantom power.
  • the first module constitutes an input module
  • the other two modules constitute output modules whose connection is tailored to the needs of the user.
  • this type of module, transmitter and receiver having a configuration analogous it is possible to make the modular set of so as to vary infinitely the configurations. So, in a first configuration, it is possible to choose eight input modules for the transmitter and eight input modules output for the receiver. In this case, the configuration will have 64 source inputs and 64 source outputs.
  • the transmitter three input modules, i.e. 24 inputs sources, an output module, i.e. 8 mix outputs and on the receiver, three output modules, i.e. 24 source outputs, one input module, i.e. 8 mixed inputs and two modules effect type input so as to have 16 effect inputs and two output modules to have 16 effect outputs.
  • the realization of the transmitter and the receiver is therefore reveals perfectly simple and reliable while providing a many possibilities.
  • Audio-analog and / or digital audio signals from various sound sources are brought in by appropriate cables on the transmitter input modules and are connected to it.
  • the connection is represented by block 10 called the input circuit.
  • these audio-analog signals are either multiplexed then converted and multiplexed again, either directly converted using a converter analog digital per se known represented in 11 in the Figure 3 then multiplexed by means of digital multiplexing 12 also known.
  • a converter analog digital per se known represented in 11 in the Figure 3 then multiplexed by means of digital multiplexing 12 also known.
  • at maximum can be sent to the addressing controller 16, eight different digital audio signals.
  • Audio-analog input signals are introduced into a device 15 called transmission control device which has two blocks, namely an addressing controller 16 and a transmission synchronizer 18. As shown in the FIG.
  • the receiver (R) comprises, analogously to the transmitter, input circuits shown at 30, conversion circuits shown in 35 and multiplexing represented at 28, a synchronizer of transmission 24 and an addressing controller 25 forming part part of a transmission control device 22.
  • the output circuits corresponding to the output module are as for them connected to the addressing controller by a system of demultiplexing 19 for the transmitter and 27 for the part receiver. These parts of the circuit are intended to receive signals from the transmitter respectively receiver so as to send them to the output circuits to various elements, such as the mixer or devices for the receiver elements.
  • the transmission data frames thus produced by multiplexing the high-fidelity signals between the transmitter (E) and the receiver master (RM) is carried out by means of a transmission medium bidirectional 21 which can be constituted by a cable coaxial of conventional type of the type adapted to the controllers of transmission 15 and 22.
  • command and control signals can be transmitted between the transmitter and the receiver, these signals allowing order changes and adaptations of configuration 17 in transmitter E.
  • control signals and control come from a control device to human-machine interface including a multi-comparator dynamic storage 26 receiving high-fidelity signals transmitted by input circuits 10 included in the first E end equipment, processing means IT 32, 33, 34 of the values calculated in the multi-comparator 26, said computer processing means also being connected to addressing control means 31 included in the receiver.
  • the controller addressing 16 of the transmitter is intended to affect, towards the audio input 10 and output 14 circuits of the transmitter, the control signals 17 of their parameters, to affect the digital audio signals from the input multiplexers 12 to the transmission synchronizer 18 and / or to demultiplexers 19 of the output circuit 14, to affect the digital audio signals from synchronizer 18 to said synchronizers output multiplexers 19.
  • the synchronizer of transmission it concatenates the multiplexing of signals digital audio using a process such as the 2B3Q process, transmits in the transmission member such as a coaxial cable the 2B3Q frame, it deconcatenates and transmits to the controller addressing 16 the digital audio signals and the command from the master receiver by the transmission such as cable 21.
  • the transmission synchronizer 24 of the deconcatene receiver and transmits to the addressing controller 25 of the receiver the signals digital audio from the transmitter by the transmission medium 21; it transmits to the multi-comparator 26 all of the digital audio signals coming from the cable; it concatenates the multiplexing of digital audio signals and remote control from the addressing controller 25 according to a process such as the 2B3Q process; it emits in the organ of transmission medium 21 frame 2B3Q.
  • the controller address 25 of the master receiver affects the signals digital audio from synchronizer 24 to said output multiplexers 27; it affects the signals digital audio input multiplexers 28 to the transmission synchronizer 24 and / or to said multiplexers 27 of the output circuit 29; he receives parallel link 32 control signals 31 parameters input 10 and output 14 audio circuits of the transmitter that it transmits to the transmission synchronizer 24; he receives control signals 31 from parallel link 32 parameters of the input and output circuits 29 and the affects them; it transmits the signals to the multi-comparator 26 digital audio of input circuits 30 and output 29 which would not be transmitted to the transmission synchronizer 24.
  • said E, RM, RE end devices include processors 3 and extractors 13 of type 2B3Q for carrying out operations concatenation and deconcatenation respectively after multiplexing and before demultiplexing of the multiplexed frames, and in that the zero value is assigned to an initial value to be fixed in said processors 3 and extractors 13.
  • the 2B3Q processors perform the combination of different states of the data coming from them in quartets including one is the zero volt value, the value at which the circuits addressing force the output of the transmission multiplexers thus putting the transmission line in reception mode. To obtain such a result, it is possible to set operates circuits according to Figures 6 and 7.
  • control means are in particular constituted by a multi-comparator with dynamic storage 26 which includes means 26a for dynamic storage parameter calculation to calculate for each of the high-fidelity signals of the first values respective absolute means for storing said b 26b absolute values, 26c means to compare respectively said first absolute values to second values previously stored absolute values, and means 26d for detect and store absolute values of larger magnitudes among the absolute values compared.
  • the operator defines the initial reference data R to R ', which are transmitted to the register.
  • the comparator receives data P to P 'from the bus and RAM 3 data Q to Q 'whose respective addresses are defined by the address bus.
  • the register receives simultaneously from the bus the data P to P '.
  • the RAM being in read mode, transmits data to the operator Q to Q so that it performs any processing.
  • the operator in order to refresh the data Q to Q 'in RAM 3 and to find there the initial reference values R to R ', the operator, by a command pulse, forces the register on its third state, puts the RAM in "write” mode and frees data from the registry to RAM; it can, from this done, put predefined data R to R 'in the RAM, and this simultaneously for all addresses.
  • the memorized multi-comparator dynamic 26 receives from synchronizer 24 and controller 25 digital signals and, for each signal, calculates the absolute value, compare this value with the value previously stored and stores the largest value magnitude. These operations take place for each signal and simultaneously for all. Subsequently, it provides the link parallel 32 and at its request the last values stored and periodically receives a reset order from all these values. The parallel link 32 then ensures the exchange with IT equipment 33 with the appropriate software all of the data from multicomparator 26 and all the data coming from the computer 33. The user, next to the data displayed, translates the data from computer 33 in control signals for setting the input 10 and output 14 circuits of the transmitter and the output 29 and input 30 circuits of the master receiver. To do this, it transmits its signals command to controller 25.
  • this processing device for each channel, it is possible from the computer keyboard to modify, by example, gain, phantom power (48 volts of each channel), modify parameters such as phase, channel cut, gain, label, choice of the route of entry, etc. Therefore, it is possible to act on each channel without any physical intervention, transmission of information and the execution of the order being almost done in real time.
  • each channel is displayed in the form of a meter, a label, its track input, its output path, the presence of power ghost and cutting off the track.
  • a pointing device appropriate (mouse, ball, cursor) the path to be modified and the selected parameter is modified.
  • functions known per se such as the functions of saving, loading, etc.
  • the device is made up for each site of a circuit including a part dedicated to the transmission (figure 6), the other on reception of the data (figure 7).
  • One of the two sites is defined as master and, from this fact generates the time reference. This master is by convention called the transmitter, the other being the receiver.
  • the transmitter is preferably consisting of the following: a parallel data bus bidirectional microprocessor type clocked by a bus address 4 allowing the device to access data from each channel to be transmitted, a clock circuit 1 ensuring the timing of the device, one or more circuits of logic multiplexing 6, a synchronization circuit 2 defining the time reference and frequency sampling, a concatenation circuit 3 of data from type 2B3Q and impedance adaptation of cable 9 and a circuit reception detection 7, a deconcatenation circuit 13 2B3Q frame, a data demultiplexing circuit 8, a data and address bus access device.
  • the receiver consists of the same elements as those of the transmitter. However, the clock device ensuring the timing and data addressing is subject to the reference transmitter time transmitted by cable.
  • the system also includes a plurality of second ancillary equipment for time switching and transmission of signals, called RE slave receivers, and a plurality of second transmission media 20, said plurality of second secondary equipment RE being connected to said first equipment E respectively through said plurality second transmission media 20, and said transmission media transmission 20 conveying seconds unidirectionally frames multiplexed in the direction of the first E equipment towards the second additional equipment RE.
  • said means operator interface 26, 32, 33, 34 are included in said second time switching equipment and transmission of RM signals, and said second RM equipment is located in a mixing room and said seconds RE ancillary equipment is located in control rooms recording or broadcasting.
  • slave receivers can have an architecture modular and include different standardized modules (input, output, control, power supply) housed in bays.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Optical Communication System (AREA)
  • Television Systems (AREA)

Claims (9)

  1. Professionelles System zur Durchschaltung und bidirektionalen Übertragung zumindest mit Zeitmultiplex für audioanaloge und audiodigitale High-Fidelity-Signale und Steuer- und Kontrollsignale, wie sie in Aufnahmestudios, auf Bühnen sowie in Rundfunk- und Fernsehregieräumen oder in Konzertsälen erzeugt und verarbeitet werden, umfassend ein erstes bidirektionales Übertragungsmedium (21), um durch Multiplexen der besagten High-Fidelity-Signale und Steuer- und Kontrollsignale erzeugte erste Raster zwischen einer als Sender (E) bezeichneten ersten Endeinrichtung zur Zeitdurchschaltung und Signalübertragung und einer als Master-Empfänger (RM) bezeichneten zweiten Endeinrichtung zur Zeitdurchschaltung und Signalübertragung zu befördern,
    dadurch gekennzeichnet, daß sie außerdem Steuermittel mit Mensch-Maschine-Schnittstelle (26, 32, 33, 34) umfaßt, die die High-Fidelity-Signale, die durch in der ersten Endeinrichtung (E) enthaltene Eingangsschaltungen (10) übertragen werden, und die besagten Steuer- und Kontrollsignale empfangen, um in Echtzeit die Entwicklung der verschiedenen Parameter bezüglich der besagten Signale zu überwachen und um in Echtzeit Änderungen und Anpassungen der Konfiguration in der besagten ersten Endeinrichtung (E) anhand der besagten Steuer- und Kontrollsignale zu steuern.
  2. System nach Anspruch 1,
    dadurch gekennzeichnet, daß die besagten Steuermittel mit Mensch-Maschine-Schnittstelle Parameterberechnungsmittel (26a) mit dynamischer Speicherung, um für jedes der High-Fidelity-Signale zugehörige erste Absolutwerte zu berechnen, Mittel zur Speicherung (26b) der besagten Absolutwerte, Mittel (26c) zum Vergleichen der besagten ersten Absolutwerte mit zuvor gespeicherten zweiten Absolutwerten und Mittel (26d) zur Erfassung und Speicherung der Absolutwerte mit größeren Größen unter den verglichenen Absolutwerten umfassen.
  3. System nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß die Steuermittel mit Mensch-Maschine-Schnittstelle datentechnische Verarbeitungsmittel (32, 33, 34) umfassen, die mit den besagten Parameterberechnungsmittlen mit dynamischer Speicherung und mit in der besagten zweiten Einrichtung enthaltenen Adressierungsteuermitteln (31) verbunden sind, um in Echtzeit verschiedene Informations-, Steuer- und Leitwegblöcke zu verarbeiten und anzuzeigen, die jeweils Übertragungskanälen entsprechen, die im System den besagten High-Fidelity-Signalen zugeordnet sind, und um in Echtzeit Veränderungen und Anpassungen der Konfiguration wenigstens in der besagten ersten Endeinrichtung (E) anhand der besagten Steuer- und Kontrollsignale zu steuern, und zwar in Abhängigkeit von Befehlen, die durch einen Bediener insbesondere anhand einer Lokalisierungsvorrichtung, etwa einer Maus, erteilt werden.
  4. System nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß die besagten Endeinrichtungen (E, RM, RE) Prozessoren (3) und Ausleser (13) des Typs 2B3Q umfassen, um Verknüpfungs- und Entknüpfungsoperationen nach dem Multiplexen bzw. vor dem Demultiplexen der gemultiplexten Raster auszuführen, und daß der Nullwert einem Anfangswert zugeordnet wird, der in den besagten Prozessoren (3) und Auslesern (13) festzulegen ist.
  5. System nach einem der Ansprüche 1 oder 4,
    dadurch gekennzeichnet, daß es außerdem eine Mehrzahl von als Slave-Empfänger (RE) bezeichneten zweiten Zusatzeinrichtungen zur Zeitdurchschaltung und Signalübertragung sowie eine Mehrzahl von zweiten Übertragungsmedien (20) umfaßt, wobei die besagte Mehrzahl von zweiten Zusatzeinrichtungen (RE) mit der besagten ersten Einrichtung (E) über die besagte Mehrzahl von zweiten Übertragungsmedien (20) verbunden ist und wobei die besagten Übertragungsmedien (20) zweite gemultiplexte Raster unidirektional in Richtung der ersten Einrichtung (E) zu den zweiten Zusatzeinrichtungen (RE) übertragen.
  6. System nach Anspruch 5,
    dadurch gekennzeichnet, daß die besagten Steuermittel mit Mensch-Maschine-Schnittstelle (26, 32, 33, 34) in der besagten zweiten Einrichtung zur Zeitdurchschaltung und Signalübertragung (RM) enthalten sind und daß die besagte zweite Einrichtung (RM) in einem Mischraum angeordnet ist, während die besagten zweiten Zusatzeinrichtungen (RE) in Aufnahme- oder Senderäumen angeordnet sind.
  7. System nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, daß die besagten ersten und zweiten Übertragungsmedien (20, 21) aus einer Koaxialverkabelung herkömmlicher Art bestehen.
  8. System nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, daß die besagten Endeinrichtungen (E, RM, RE) eine modulare Architektur aufweisen und verschiedene Standardmodule (Eingang, Ausgang, Steuerung, Stromversorgung) umfassen, die in Gestellrahmen angeordnet sind.
  9. System nach einem der Ansprüche 1 bis 8,
    dadurch gekennzeichnet, daß es außerdem Mittel wie Optokoppler (23, 14) umfaßt, die an verschiedenen Stellen im Verlauf der Signale und Raster angeordnet sind, um eine korrekte galvanische Isolation zwischen den besagten Endeinrichtungen zu gewährleisten.
EP94931072A 1993-10-18 1994-10-17 Professionelle bidirektionale schalt- und übertragungsvorrichtung unter verwendung von zeitmultiplex von analogen bzw. digitalen hifi audiosignalen und steuer- und kontrollsignalen Expired - Lifetime EP0724793B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9312364A FR2711460B1 (fr) 1993-10-18 1993-10-18 Système de commutation et transmission bidirectionnelle à multiplexage temporel pour des signaux haute-fidélité audio-analogiques et audionumériques et des signaux de commande et de contrôle.
FR9312364 1993-10-18
PCT/FR1994/001199 WO1995011553A1 (fr) 1993-10-18 1994-10-17 Systeme professionnel de commutation et transmission bidirectionnelle a multiplexage temporel pour des signaux haute-fidelite audio-analogiques et audionumeriques et des signaux de commande et de controle

Publications (2)

Publication Number Publication Date
EP0724793A1 EP0724793A1 (de) 1996-08-07
EP0724793B1 true EP0724793B1 (de) 1999-08-04

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EP94931072A Expired - Lifetime EP0724793B1 (de) 1993-10-18 1994-10-17 Professionelle bidirektionale schalt- und übertragungsvorrichtung unter verwendung von zeitmultiplex von analogen bzw. digitalen hifi audiosignalen und steuer- und kontrollsignalen

Country Status (9)

Country Link
US (1) US5764917A (de)
EP (1) EP0724793B1 (de)
AT (1) ATE183040T1 (de)
DE (1) DE69419931T2 (de)
DK (1) DK0724793T3 (de)
ES (1) ES2138093T3 (de)
FR (1) FR2711460B1 (de)
GR (1) GR3031773T3 (de)
WO (1) WO1995011553A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8675649B2 (en) 2008-11-18 2014-03-18 Yamaha Corporation Audio network system and method of detecting topology in audio signal transmitting system
EP2280488A1 (de) * 2009-06-30 2011-02-02 STMicroelectronics S.r.l. Übertragungs- und Empfangseinrichtung für digitale Signale
DE102009028645B4 (de) * 2009-08-19 2014-04-03 Raumfeld Gmbh Verfahren und Anordnung zur Synchronisation von Datenströmen in Netzwerken sowie ein entsprechendes Computerprogramm und ein entsprechendes computerlesbares Speichermedium

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US3795771A (en) * 1970-05-15 1974-03-05 Hughes Aircraft Co Passenger entertainment/passenger service and self-test system
FR2552958A1 (fr) * 1983-10-03 1985-04-05 Moulin Andre Console numerique de traitements de signaux
EP0263177A1 (de) * 1986-04-11 1988-04-13 Orion Research, Inc. Audio-mischer-anordnung und verstärkungsregelungsschaltung für diese
DE3615981A1 (de) * 1986-05-13 1987-11-19 Gregor Berg System zur parameterprogrammierbaren bearbeitung von audiosignalen in kombination mit programmierbarer schaltmatrix, zur anwendung im bereich der analogen und digitalen elektronischen aufbereitung von audiosignalen
EP0310456A3 (de) * 1987-10-01 1990-12-05 Sony Magnescale, Inc. Tonmischverfahren
US4922536A (en) * 1988-11-14 1990-05-01 Massachusetts Institute Of Technology Digital audio transmission for use in studio, stage or field applications
US5299266A (en) * 1992-03-20 1994-03-29 Sony Electronics Inc. Multi machine monitor for TV post production

Also Published As

Publication number Publication date
FR2711460B1 (fr) 1996-02-02
DK0724793T3 (da) 2000-03-13
US5764917A (en) 1998-06-09
ATE183040T1 (de) 1999-08-15
DE69419931D1 (de) 1999-09-09
EP0724793A1 (de) 1996-08-07
FR2711460A1 (fr) 1995-04-28
DE69419931T2 (de) 2000-05-04
ES2138093T3 (es) 2000-01-01
GR3031773T3 (en) 2000-02-29
WO1995011553A1 (fr) 1995-04-27

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